Core Viewpoint - High-purity quartz resources are critical for the development of strategic emerging industries such as photovoltaics, semiconductors, and optics, and their stable supply is essential for national industrial security [2] Group 1: Challenges in Exploration and Evaluation - The exploration and evaluation of high-purity quartz face significant challenges due to strict requirements on stability, scale, impurity content (ppm level), and other geological characteristics [2] - There is a lack of comprehensive research data along the entire chain from "typical deposits - ore - finished sand," which hampers field identification, exploration methods, and industrial indicators [2] - The current methods for rapid field identification are inadequate, relying on qualitative indicators like color and transparency, leading to the inclusion of many unqualified samples in subsequent evaluations [5][6] Group 2: Inadequate Exploration Methodologies - Conventional geological exploration methods are insufficient for the precise exploration needs of high-purity quartz deposits, which often occur in ancient metamorphic rocks and have complex formations [7] - Existing single exploration methods cannot accurately identify the boundaries, continuity, quality, and morphological characteristics of the deposits, necessitating the development of targeted methodological combinations [7] Group 3: Lack of Specialized Industrial Standards - Current industrial indicators for quartz resources focus on traditional silica raw materials, which do not meet the unique requirements of high-purity quartz, leading to difficulties in resource estimation and mining [9][10] - High-purity quartz has a significantly higher resource value, with raw ore prices generally exceeding 2000 RMB per ton, compared to traditional materials priced in the tens to hundreds of RMB per ton [10] Group 4: Technical and Economic Evaluation Difficulties - The final processability of high-purity quartz cannot be determined through conventional mineral processing tests, making mineralogical research and high-quality processing trials critical [11][12] - The complexity and lack of reference for processing trials hinder precise evaluations during exploration, affecting the feasibility assessments of resource development [12] Group 5: Absence of Geological Exploration Standards - Despite being recognized as an independent mineral resource, high-purity quartz lacks a comprehensive exploration standard system [13][14] - The existing guidelines focus primarily on ore quality assessment and do not address core exploration content, leading to a lack of standards for exploration and resource evaluation [14]